Convert iPhone photos to WebP: smaller pages, same picture
Processed in your browser. Nothing is uploaded. Updated on 24 Oct 2026.It is worth seeing HEIC and WebP side by side. HEIC is what an iPhone saves by default. Small, but many programs and websites still cannot open it. Set against that, WebP offers roughly a quarter off the file size at the same visible quality, transparency included. WebP is lossy, so a little detail is thrown away. Up to twenty files at a time, each one converted on your own machine.
Drop the iPhone HEIC photos on the box; WebP is already set under Convert to.
The HEIC decoder loads the first time you convert, and the row says so while it works.
Set Quality, which starts at 85; WebP is lossy and usually smaller than a JPEG of the same photo.
Press Convert to WebP, then Download the photos, several at once as a zip.
Convert Image reads ten formats and writes seven. It opens JPEG, PNG, GIF, WebP, AVIF, BMP, TIFF, ICO, SVG and HEIC, and saves as JPEG, PNG, WebP, AVIF, BMP, TIFF or ICO. Drop up to twenty files in and each row shows the new size beside the old one as it finishes.
The file is identified by its first bytes, never by its name, so a HEIC photo renamed .jpg is still recognised as a HEIC and the page says so before converting it. What it finds is spelled out: "a TIFF image, 3 pages", "a GIF image, 12 frames", "an ICO image, 3 sizes up to 48 px". The target format is already chosen for you, either by the page you arrived on or by what people most often want that format turned into, so the only thing left to do is confirm.
Everything runs on your device. TIFF uses a reader loaded only when a TIFF arrives; HEIC uses a decoder loaded only when a HEIC arrives; an SVG is stripped of anything that could run or fetch and then drawn in an isolated image, at a size you choose. Writing WebP and AVIF depends on the browser, and the tool disables a format it cannot write rather than quietly saving something else. Limits are 20 files per batch and 50 MB per file.
The rest of the article, and all 8 questions about Convert Image, are on the Convert Image page.
Reading works for JPEG, PNG, GIF, WebP, AVIF, BMP, TIFF, ICO, SVG and HEIC; writing works for JPEG, PNG, WebP, AVIF, BMP, TIFF and ICO. That is every pair those two lists allow, about sixty of them, and each pair has its own page with the target format already chosen for you.
Frames are counted the moment the file is dropped, and the first one is kept by default, because a still is what people usually want. Chrome and Edge can read every frame, and there the choice 'All 12 frames' gives you one file per frame. Other browsers can only read the first, and the page says so rather than pretending.
Not here, and the page says so up front. Tracing pixels into shapes is a different job, done by Image to SVG on this site, and PSD files are now opened by PSD to PNG, which saves the picture and each layer. Camera RAW differs by manufacturer and needs a decoder too large for a browser; export a JPEG or TIFF first.
Twenty files per batch and 50 MB per file. Nothing is uploaded: the conversion runs in your browser, the TIFF and HEIC readers load only when one of those files arrives, and the converted files are built on your own device.
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On the related tools: JPG to PPT – Build a slideshow from JPG photographs in a few seconds · Combine Photos – Put two or more pictures side by side in one image.
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